Compartment-kiln.



R. H. MCELROY.

COMPARTIVIENT KILN.

APPucATmN Hman sm. 1, |917.

Patented Aug. 13, 1918.

3 SHEETS-SAHEET l.

Illl Il...

R, H. NICELROY.

COMPARTMENT IULN.

APPLICATION FILED sum1. 1911.

Patented Aug. 13, 1.918.

3 sums snm a.

Qwmwwmf ww mw MMQHUIHIH RQ H. MCELROYH COMPARTWIENT KILN.

APPLscATloN mm sum1. 19u.

11118111911 1mg. 13, 11118.A

3 SHEETSSHEET 3- Leterme. 1 l l l l l y l Apiiceegliflied september 1,'t`ia1aseriai1t`o. 139399,* l

t ROY Hg Maenner nor narrow,

omo,` nssreuoiadzro "Tira rurnnnnrronan `einer MACHINERY oo., or DAYTON, omo. i 1

Toma/,ZZV whom t i t A Be it lmown that I, ROY H. iMCELRor, aclti-f zen of theUnitedStatesyresiding at Dayton, in the county of Mntsnierrl alf-1d State olf Ohio, have invented `certain new anduseful `limprovements in` Compartmentflilns, of which Athefollowingis a specification." 'l

This invention relates to new` and useful improvements `in "compartment'kilns."` The objects` `of the invention are as `follows to provide improved means for distributing the heat through `the ,brick` whereby the` ware is more uniformly `burned 1 Vto ing compartment whereby the heat maybe used in afwastepheatdrier; to" provide im-` proved means 4 t thevarious coinpartmentsglto provide means forstrengthening the support for the division walls l and to provide means whereby a suiiicient t t t pass through `the kiln to allowl ofthe burning of a plurality oflcompartments'at a time, and other objects `will hereinafter' appear from the description and be` particu` larly pointed out in the claims. l t: Referring to Vthe accompanying drawings in general terms,- Figure l is `a top plan `view of a portion of a kiln,l"'w`ith parts` broken away, constructed in accordancef'with my invention." Fig.2 is a` Vertical longitudinal section approximately on the 1line of Fig. Figf is a horizontalpsection, "the upper portion being Aon, the flinel Stf-Slbf Fig'. 2and the lowerportionffbeing on` the line Sbff" of Fig. 2. Fig `lisa section approximately on the line `l-ell of Fig. 2L Fig. 5 is a detail `elevation of one of the gasup-takes.; Fig. Gris a `detailed viewgof' afinodied form ofgas'up-take` Fig, 7 is a detailedvie'v showing themeans for con; trolling the gas valves."` l ltis `toloe `understoodthat the present invention may be applied,` to well known form of kiln,` constructed eitherfinsingle ordouble battery orieatloc.`

Referring more particularly tothe drawf `ings, l representsa kilnwhichis provided with endY Walls 2 and division walls 3`which support arched tops 4C. The `division walls 3 separate the kiln intoua plurality of compartments. l The side walls are provided with door vopenings `51whi1ch may be closed by wickets 42, and which jpermit `access y to sbe, had to the compartments.A `The kilnfis t coivrrAaTMENT-KILN H f Speeication of Letters Patent; i

\ andtheinished t t provideHn'ieans" for drawing olf the waste heat from a cool-` for distributing the gas` to quantity ofair" is permitted to ments" 'andi` the* feather` walls" 8` which a single battery, the fines` ments of Patented Aeg; 13, 191s.

provided, `each compartment, with par-` tially" perforated floors 16 upon whichfthe warerests.` l l t As is well known, inkilns of this type, one orfa plurality of compartments is burned at each compartment or number of compart-` ments have been `completely burned` The greentware is placed inthe kiln in a com`-` partirent somewhat infadvance of the `compartmenthorj confipartments being burned, ware isiremoved from a compartment somewhat inthe rear of the compartment or compartments being burned andaften the warehas cooled` The heated gases from thecompartmentsbeing burned are conducted to the compartments containingthefgreen ware in advance,` and the air whicht supports the combustion ill the burning `cronipartments ,is received from the ware in "the 'coolingcompartments in therear. Theheatedair fro1n"`3the cooling compart# l l products ofcombustion or sulfurmgases" from the burning compartmentarel lconducted from one compartment to the "otherfby flues 7` which lie `between support the floors 6. The compartments communicate with the liues through the perforated floors "and said flues ("extend" through'the" division walls 3 a time, and the burning is `advanced after and 3" discharge' into `the 9 next compartment threugh air ports 9 behind bag walls l0.

The 1air ports 9 are of a t size which enables a` sufficient tpiantity` of air to pass there# through` to rmit of a plurality Ofcompartinents being burned at a time, each burning'compartnient taking its quota of airas the air passes through the kiln. The" airfand sulfurgases'after passing into the l? various Vcompartments "behindfthe bag walls 10 are deflected" downwardly "bythe arched tops l y througl1"`=jthe warelandfout t ofthe compartments; through the perforated doors 16. l/Vhen thlekiln is "constructedlinjtheform of 7 are connected by a emmene (not shown) which permits the en'd "compartmentsofthe kiln to coin;-

munioa'te with" eachother. `When the kiln l Lis constructed `in the form 1of adouble battery or ,ea `bloc the" opposite end compartports l11 in the division walls 3, the, ports 11 l l l each battery areconnected by latdischarging into the compartments behind supply. o-f gas to the individual ports 11. The gas ducts13 extend tothe side of the kiln and are connected to up-takes 15 located at the vside ofthe kiln as shown in Fig. 4. This constructionk prevents to a great extent tar'being deposited in the lateral fluesr 13. In Fig. 6 similar gas up-takes 45 arelo'cated within the kiln. The 11p-takes 15 connectk with a main gas duct 16 which lies along the side ofthe kiln below the ground level.v The main gas flue 16 extends to the end of the kiln where it is connected tofagas-producer 17 by a pipe 18. It is to beY understood that when the kiln is constructed in a double battery, with two rows of compartments, or en bloc, the main gas duct v16 extends along both sides of the kiln. By means of this construction all of the compartments maybe supplied with gas vfrom a v .single or common gas pro ducer. The supply of gas from the main gas duet 16 to the individuali 11p-takes 15 is controlled by valves 19 operated by a chain or other flexible connectionsv20. To permit the valves 14 and 19 to kbe conveniently set when the operator is observing the condition of the re, the flexible connections 2O are run over pulleys 21 and are extended to a point adjacent to peep holes 22 of the kiln where they maybe secured by suitable hooks 23. The up-takesA '15 are provided with doors 24 which permit accessfto be had to the `interior to facilitaterepair andto permit air to enter the main draft flue 16 when the tar deposits are kbeing burned out. In the construction shown in'Fig. 6l this access may be had through a cap 46. To permit of the burning out of the gas ducts 16, the gas duct at the lendfof the kiln is provided with a port 25 adapted to'be connected to a'port 26 which Y is connected to a stack 27 by a flue 28. When not in use the ports 25 and 26 may be covered. by a cap 29, but when it is desired to burnout the flue the ports are connected by afhood 30 such as isvusedinfconnection with the vmain draft fluey hereinafter referred to'.

located upon the feather walls 8, and to strengthenthis sup- Yport some of the flues 7-alternate flues 31 in the present instanceare stopped off, and ,the divisionV walls y3 are extended'to the `foundation thereby providing an increased support for the walls 3. To provide for an equaly distribution of the gases and air through the ware, the lines 31 which are stopped olf at the Ydivision walls 3, extend only partially across the compartments, the

ends adjacent to the bag walls 10 being This communication Y is controlled by valves 14 which regulate the non-communicting and lying below the nonperforated portions 32 of the floor. This arrangement prevents a major portion of the gases escaping to the flues 7 in a path adjacent to the bag-walls 10, and compels an equal distribution of heat throughout the Y'compartmen After the sulfur gases have -passed through the pre-heating compartments in advance of the burning compartyment, they are conducted out of the kiln through lateral flues 33 which lie below the floors 6 of the kiln and communicate with 4thepflues 7 and with the iiues 31 through .ports 34. At one side of the kiln the lateral {draft flues 33 yare provided with ports 36 which are adapted to be connected, by means of a hood 30 before referred to, with ports 37 of a main draft flue 38. The main draft flue 38 is connected to the stack 27 or any lother suitable draft appliance such as a fan (not shown). To equalize the pressure of the gases in the flues 7 and 31, the feather walls 8 are provided with ports 35. In addition to heating the air which supports combustion the cooling compartments may supply waste heat to be used in connection with a drier (not shown) for the green ware. In this arrangement the heated air is confducted from the compartment to a waste heat flue 39 which in the present instance lies below the main draft {iue 38. The waste heat flue 39 is conducted to the waste heat drier above referred to in any approved manner. The flue39 is provided with ports 40 which are connected to the compartments from which the waste heat is extracted by va pipe 41 which enters any one of the compartments through the wickets 42 in the door 5' thereof., The air used in waste heat drying enters the compartment through the opposite door or from an adjacent compartment. The kiln may be provided with any accepted form of water-smoking arrangement which may consist of a fine 43 arranged on top of the kiln and adapted to be connected to the various compartments by pipes 44.

The operation of the kiln is as follows:

The various compartments are filled with the ware progressively and are 'fired suc- Ycessively, the' ware being placed in the kiln in a compartment in front of and removed from a compartment in the rear of the compartment being fired. l The ware in front is vpreheated by the sulfur gases or products of combustion from the burning compartment, while the air which supports combustion is preheated while passing through the cooling and previously burned compartment in the rear of the compartment being .fir-ed. The' air which supports combustion enters the kiln through the doors 42 of the extreme rear cooling compartment, the wickets thereof being broken open for that purpose. The air then passes forward lV l 0 i `:terapie through the cooling compartments through the perforated floors 6 and flues 'E' which connect all of the compartments in a successive manner. When the air reaches the burning compartment it ismixed with the gas (which enters `the kiln through down takes 12) at the burners 11 at which `point the combustion is incipient. The bag-wall flame upward where it is directed down through the ware by the arches l. After passing through the ware the spent or "sulfui' gases pass out of the burning compartment through its perforated iioor Where they are conducted to the next and succeeding preheating compartment. When the sulfur gases reach the final preheating` compartment they are conducted out of the kiln through one of the ues 33 and to a stack or other draft appliance.

I-Iaving described my invention, I claim:

l. `A kiln provided with a plurality of compartments, a bag Wall in each compartment, perforated floors for said compartments, the side of the floors adjacent to the bag walls being less perforated than the other side, and said kiln being provided with iiues which connect said compartments.

. A kiln provided with a plurality of compartments, a bag wall arranged at the side of each compartment, a perforated floor for each compartment, said floor having noirperforated portions at one side and adjacent to the bag walls, and said kiln being provided with flues which connect said compartments. l

3. A kiln provided with a plurality of compartments, feather Walls forming com municating fines between said compart-` ments, division walls separating said compartments, said division walls beingmount ed above said feather downwardly between the feather walls of alternate iiues thereby stopping off said alternate nues, the said feather wallsbeing the division walls. y

el. A kiln provided with a plurality of Copies of this patent may be obtained for five cents each, by addressing the ing provided with ports,

walls and extended ance connected with said draft flue, gas

ports in said compartments, a gas duct `con-m nected to said gas ports, and ahood connecting said gas duct to said draft appli* ance. u

5. A kiln provided with a plurality of compartments, communicating flues between saidcompartments, a main draft flue connected with said communicating flues, a

draft appliance connected with said main i draft Iiue, gas ports in said compartments, a gas duct connected with said gas ports, said" draft appliance and said gas duct beaiid a hood adapted to connect said last named ports.

6. A kiln provided with division` walls forming a plurality of compartments, gas ports lfor said compartments, gas down takes in said division walls and connected with said ports, a vmain gas duct connected to said down-takes, communicating flues between said compartments, amain draft flue connected to said communicating flues, a draft appliance for said main draft flue, a hood adapted to connect said gas duct with said draft appliance, and a watersmoking flue common to and adapted to be connected with said compartments.

7 A kiln provided With a plurality of compartments, gas ports for said compartments, the kiln and connected to said gas ports, a main gas duct connected to said gas uptakes, and communicating flues between said compartments.

8. A kiln provided with a plurality of compartments, gas ports for said compartments, gas 11p-takes located at the side of and exterior to the kiln and connected with nor ii; MGELROY.

Washington, D. C.

gas up-takes located at the side of` "Commissioner of latents,

`said gas ports, aymain gas duct connected to said gas uptakes, and communicating y lines between said compartments.

of continuous formand extending through 

